Abstract: The differential pair system includes a push-on high frequency differential connector sleeve and push-on high frequency differential connector. The system allows for blind mating of the two components, using a keying system for the two electrical conductors to be axially and radially aligned.

Abstract: The planetary gear train includes a first sun gear driven by the motor, a first ring gear, a first carrier, and a plurality of first planetary gears arranged at one side of the first carrier and meshing with the first sun gear and the first ring gear. The first sun gear, first planetary gears and first ring gear are helical gears so that meshing surface is increased. Helical teeth formed on an inner surface of the first ring gear mesh with the helical teeth of the first planetary gears. Therefore, the operation is stable and the noise is low. The planetary gears are made of plastic to further decrease the noise. The first ring gear is made by sintered powder metallurgy.

Abstract: A radiation protective vest includes a back panel with flaps at opposite lower sides and a pair of front panels, each panel containing radiation shielding material. Each front panel has an inner straight edge and a flap at a lower outer side. The front and back panels are connected to form the vest. A first strap is attached to one front panel and a second strap is attached to the other front panel. The second strap is threaded in a first sleeve attached to the inside of the back panel and the first strap is threaded in a second sleeve attached to the inside of the back panel. A fastener is provided on the free ends straps. When the vest is worn, the flaps of the front panels press against a user's waist and the back panel flaps overlap the front panels.

Abstract: The differential pair system includes a push-on high frequency differential connector sleeve and push-on high frequency differential connector. The system allows for blind mating of the two components, using a keying system for the two electrical conductors to be axially and radially aligned.

Abstract: A coaxial transmission connector is provided that includes a housing and a plurality of fingers extending from the first end of the housing. The connector can be mated with a mating connector interface, which can be disposed in a bore extending within a multiple-position connector assembly. Methods for attaching a coaxial cable to a coaxial transmission connector and for mating the connector with the mating connector interface are also provided.

Abstract: A multiple position push-on electrical connector has a housing and at least two sets of bores extending through the housing. The connector also includes a plurality of electrical conductors that extend beyond a first face of the connector and are electrically insulated from the housing. The electrical conductors are capable of transmitting DC signals through the connector. A multiple position push-on electrical mating connector has housing, a first set of bores extending through the housing and a plurality of electrical conductors for transmitting DC signals through the housing. The two connectors are preferably configured to mate with one another and communicate with a device to which the multiple position push-on electrical connector is connected.

Abstract: A multiple position push-on electrical connector has a housing and at least two sets of bores extending through the housing. The connector also includes a plurality of electrical conductors that extend beyond a first face of the connector and are electrically insulated from the housing. The electrical conductors are capable of transmitting DC signals through the connector. A multiple position push-on electrical mating connector has housing, a first set of bores extending through the housing and a plurality of electrical conductors for transmitting DC signals through the housing. The two connectors are preferably configured to mate with one another and communicate with a device to which the multiple position push-on electrical connector is connected.

Abstract: A method of analyzing the condition of a motor driven rotating system using a current waveform produced by the motor. The motor position is initially identified from the current waveform produced by the motor and more particularly, a step of identifying the segment switching of the motor is performed to identify the system position with reference to individual rotations of the motor. The current waveform is then normalized to a preselected number of data points, each rotation being described by the preselected number of data points, such that the current waveform is converted from the time domain to a spatial domain corresponding to positions of the system. Subsequently, a frequency analysis is performed to identify frequencies corresponding to characteristics of the system, including calculating a frequency dependent distribution of the normalized current waveform to determine the energy content of the waveform at particular frequencies.

Abstract: A method of analyzing the condition of a motor driven rotating system using a current waveform produced by the motor. The motor position is initially identified from the current waveform produced by the motor and more particularly, a step of identifying the segment switching of the motor is performed to identify the system position with reference to individual rotations of the motor. The current waveform is then normalized to a preselected number of data points, each rotation being described by the preselected number of data points, such that the current waveform is converted from the time domain to a spatial domain corresponding to positions of the system. Subsequently, a frequency analysis is performed to identify frequencies corresponding to characteristics of the system, including calculating a frequency dependent distribution of the normalized current waveform to determine the energy content of the waveform at particular frequencies.

Abstract: A novel bag tag comprises an elongated strip of material formed from a facestock and heavily bonded to a tear resistant liner. Some, but not all of the liner is removable on our end of the strip so that the two ends of the strip can be adhesively joined together for attaching the tag to a piece of luggage. The non-removable portion of liner remains in place to prevent tearing of the tag on the end bearing the adhesive layer.

Abstract: A multiprocessor having improved bus efficiency is shown to include a number of processing units and a memory coupled to a system bus. Also coupled to the system bus are at least one I/O bridge system. A method for improving partial cache line writes from I/O devices to the central processing units incorporates cache coherency protocol and an enhanced invalidation scheme to ensure atomicity while minimizing the bus utilization. In addition, a method for allowing peer-to-peer communication between I/O devices coupled to the system bus via different I/O bridges includes a command and address space configuration that allows for communication without the involvement of any central processing device. Interrupt performance is improved through the storage of an interrupt data structure in main memory. The I/O bridges maintain the data structure, and when the CPU is available the interrupts can be accessed by a fast memory read, thereby reducing the requirement of I/O reads for interrupt handling.

Abstract: A film re-shaping device for orienting and re-shaping the end of a filmstrip in a desired configuration having, a base, an alignment post mounted on the base, an elongated metal lower die plate with an guide hole for positioning the die plate over the alignment post, formed in the desired end-of-filmstrip configuration, a film guide mounted on the die plate for aligning an edge of the filmstrip, a film edge spring for keeping the filmstrip against the film guide, a spring loaded roller attached to the base for bearing on the filmstrip and flattening the filmstrip against the die plate surface, and an elongated metal upper punch plate having an guide hole for positioning the punch plate over the alignment post and aligning the plates accurately with each other, formed at the film re-shaping end in the desired end-of-filmstrip configuration, whereby the filmstrip is captured between the upper and lower plates, is described.

Abstract: An apparatus for cutting and desplicing a roll of spliced films, being transported through the apparatus, to form filmstrip leading and trailing ends and re-shaping each end to their desired configurations having, a splice cutter located along the film path for forming two filmstrip ends with residual splices thereon, punch and die assemblies located adjacent to the splice cutter for re-shaping the ends of the filmstrip and removing the residual splice, moveable alignment guides located adjacent to each punch and die assembly, for aligning the film prior to cutting and re-shaping operations, a plurality of flexible guides located along the film path for guiding the spliced and despliced films along the film path, and an aperture located below the splice cutter, underneath the film path, for disposing of the removed residual splices, is described. A method for cutting and re-shaping the ends of a filmstrip using the apparatus is also described.

Abstract: A screwdriver with sturdy construction, lightweight, changes quickly, and transports easily. This device has a two deck multi-bit holder for nut drivers and bits, a top locking deck which is very secure, a quick release button to separate the decks and observe the nut drivers and bits, a hand driver with a magnetic sleeve to accept all the nut drivers and bits, and a hex to slide the top deck up and down. The key to this device lies in the top lock deck: the notched dowel pin fits snuggly into the matching notch on the hex shaft.

Abstract: An audiovisual filmstrip image display apparatus and method includes an image displayer, such as a viewer projector, television or computer screen or the like, together with an audio speaker and a converter including a player, capable of playing multiple sound programs or sequences stored on sound storage equipment either internal or separate and a signal detector for reading magnetic signals on a filmstrip to indicate to the player the sound program to be played in conjunction with each individual filmstrip image being viewed. Various forms of equipment which may be included in an apparatus according to the invention are disclosed.

Abstract: A method and apparatus for detecting and correcting the occurrence of flashover in a direct current electric motor. The polarity and magnitude of voltage on the field winding of the motor is continuously monitored. Detection of a sudden reversal of the polarity of the field voltage accompanied by a rapid increase in magnitude results in the generation of a flashover signal. The flashover signal is coupled to power controlling elements regulating power supplied to the motor and is effective to force removal of power from the motor. In a preferred embodiment the apparatus is disclosed in a two-motor system with two field windings serially connected such that the field voltage monitoring is accomplished on a differential basis.

Abstract: Apparatus for increasing the available regenerative braking energy and for enabling low current control without frequency variation in a time-ratio controlled main thyristor power circuit for a direct current traction motor. A variable impedance element is serially inserted in a motor armature free-wheeling current path between a free-wheeling diode and the motor armature, the variable impedance element preferably comprising a power resistor and parallel connected thyristor. During electrical regenerative braking the thyristor is used to modulate the power resistor to thereby present a continuously variable impedance in the armature current path. During motoring at very low speeds the thyristor can be operated to modulate the power resistor and thus reduce the minimum controllable level of motor current normally limited to commutation current level without the necessity of reducing the main thyristor operating frequency.

Abstract: A d-c motor drive system, useful for propelling and retarding electrically propelled traction vehicles, wherein the armature winding has a first terminal coupled through an armature chopper to a first polarity conductor of a d-c source, and a second terminal coupled through a breaker switch to a second polarity conductor of the d-c source. First and second controlled rectifiers are connected across the first and second conductors in a self commutating circuit such that they conduct sequentially and alternatively. Means are provided for varying their respective conduction time intervals to control the voltage at their junction. Field winding means are coupled from the junction of the controlled rectifiers to the junction of the armature second terminal and the breaker. During the motoring mode with the breaker closed field current flows in a first direction.